Simon ullmo



UNITED STATES PATENT OFFTQE.

SIMON ULLMO, OF LYONS, FRANCE.

TANNING COMPOUND.

SPECIFICATION forming part of Letters Patent No. 230,841, dated. August3, 1880.

Application filed November 4. 1879. 1

To all whom it may concern:

Be it known that I, SIMON ULLMO, 0t Lyons, in the Republic of France,have invented a new and Im proved Tanning Compound, of which thefollowing is a specification.

The object of my improred compound is to perform a thorough tanning in avery short time.

My composition consists of the followingingredients, in about thefollowing proportions, which are given in quantity sufficient for onehundred pounds of skins: divi divi, thirty pounds; garouille, oroak-bark, thirty pounds; alum, thirty pounds; sour barley-flour, fifteenpounds; sulphate of copper, one pound.

The skins, having been subjected to the ordinary operations of riverWork, are thrown into a hermetically-closed fulling-mill containing aquantity of water sufficient to cover them entirely, and in which theseveral ingredients hereinabove mentioned have been dissolved andinfused. The skins are turned in the fulling-mill during abouttwenty-four hours with such speed that the temperature cannot exceed thedegree above which it'would injure gredients have been used together fortanning purposes; but I am not aware that all of the said ingredientshave been used together in the proportions stated.

WVhat I claim, and desire to secure by Letters Patent, is

The herein-described tanning compound, consisting of divi-divi,garouille, or oak-bark, alum, sour barley-flour, and sulphate of copper,in about the proportions herein set forth.

SIMON ULLMO.

WVitnesses:

LoUIs BAOHELE, P. TIBRo.

